feat: 收款流水页新增推送金蝶按钮与推送状态/失败原因/金蝶单号列，认领口径切公告未认领金额

- 行按钮推送金蝶（receipt_flow_push 权限，认领完成且未推送可点），成功提示金蝶收款单号
- 列表/详情展示推送状态、推送失败原因、金蝶收款单号与金蝶状态，留痕表含推送记录
- 认领表单/批量认领上限校验切公告未认领金额口径，新增剩余可认领金额展示

src/views/payment/receipt-flow-form.vue

@@ -51,6 +51,10 @@
             ><el-form-item label="金蝶未认领金额"
               ><el-input :model-value="formatMoney(form.unclaimedAmount)" disabled /></el-form-item
           ></el-col>
+          <el-col :span="6"
+            ><el-form-item label="剩余可认领金额"
+              ><el-input :model-value="formatMoney(claimableAmount)" disabled /></el-form-item
+          ></el-col>
           <el-col :span="6"
             ><el-form-item label="摘要"><el-input v-model="form.summary" disabled /></el-form-item
           ></el-col>
@@ -247,6 +251,12 @@ export default {
         0
       );
     },
+    claimableAmount() {
+      return Math.max(
+        Number(this.form.unclaimedAmount || 0) - Number(this.form.claimedAmount || 0),
+        0
+      );
+    },
   },
   created() {
     if (!this.batchMode) this.initialize();
@@ -336,8 +346,8 @@ export default {
         this.$message.warning('分摊收款金额必须大于0');
         return;
       }
-      if (this.allocatedTotal > amount - Number(this.form.claimedAmount || 0) + 0.001) {
-        this.$message.warning('本次分摊金额不能超过流水剩余可认领金额');
+      if (this.allocatedTotal > this.claimableAmount + 0.001) {
+        this.$message.warning('累计认领金额不能超过公告未认领金额（剩余可认领金额）');
         return;
       }
       for (const row of this.form.settlements)